import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: LIUYANJIAO
 * Date: 2024-11-17
 * Time: 12:49
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        String s=scanner.next();
        for (int i = 0; i < s.length(); i++) {
            for (int j = i+1; j < s.length(); j++) {

            }
        }

    }

}